This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify debian-7-turnkey-mediawiki_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 09:32:50 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c8c5393fc188d848e598922c1c26d49888abb902 * md5sum 28d89ab5bbeced2797acacca9059a280 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXl07AAoJEIXCXpWhbrlNiLQIAJ1VfzzonRm8dw8lbwron1IQ REERH7B2zfjqpFlUi1qN7w9fVsJLy87l5RA0S5chRhfpMgkUKVj8iRuh9fOPvNJZ urufeDELzavjI2KREPMUK1pUa1jths6fLFQLJmdnbIglXOT/YB/oLF6rvYbe2BQA UxFUGkFKMBMVEwnc1PnCD5797/jUfrRrIcoxBDByMw3WXl0DQVAEEr9mQnh9ZOV+ LaSOlA1KaKiF0zMHur4KnD0CTymmPG16AtFo/DbAdG6b1YegpUqq4QBbdn5+qXqt pdwS/g1qDF7vNaEnIwLVD0SQmCwMO6JpQYeqsnCFi61uaK3cL8UFDzuiJoPd3Ao= =gIu0 -----END PGP SIGNATURE-----